CN109356402B - Pin-connected panel spiral stair for working well - Google Patents
Pin-connected panel spiral stair for working well Download PDFInfo
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- CN109356402B CN109356402B CN201811584828.0A CN201811584828A CN109356402B CN 109356402 B CN109356402 B CN 109356402B CN 201811584828 A CN201811584828 A CN 201811584828A CN 109356402 B CN109356402 B CN 109356402B
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- plate
- well
- footpath
- conveying pipe
- concrete conveying
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention discloses an assembled spiral stair for a working well, which is characterized by comprising a plurality of stair components which are spirally and sequentially arranged on a well wall of the working well, wherein each stair component comprises a support arranged on the well wall and a footpath plate paved on the support, and one side of the footpath plate, which is far away from the well wall, is provided with a guardrail; the concrete conveying pipe paved along the footpath plate is arranged below the footpath plate, and the concrete conveying pipe is fixed on the bracket. The concrete conveying pipe has the advantages of ingenious structural design, convenience in arrangement of the concrete conveying pipe, contribution to reducing labor intensity, improvement of construction safety and the like.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to an assembled spiral stair for a working well.
Background
The pipe-jacking construction is a non-excavation construction method, and is a pipeline burying construction technology without excavation or with few excavations. The pipe jacking construction is that the friction force between the pipeline and the surrounding soil is overcome by means of the jacking force generated by jacking equipment in a working pit, the pipeline is jacked into the soil according to the designed gradient, and earthwork is transported away. After one section of pipe is pushed into the soil layer, the second section of pipe is pushed into the soil layer continuously. The principle is that by means of the thrust of the main top oil cylinder, the pipeline and the relay, the tool pipe or the development machine is pushed into the receiving pit from the working pit through the soil layer and is lifted. The pipeline is buried between the two working wells after following the tool pipe or the heading machine.
The working well is mainly used as the starting point and the end point of the jacking pipe, the construction distance of the jacking pipe is divided, the jacking length is controlled, and the normal jacking can be ensured under the allowable frictional resistance under the condition of not damaging a concrete pipe. Meanwhile, the system also undertakes the work of entering and exiting the pipe jacking construction area by constructors, installing jacking equipment and the like. Set up vertical cat ladder on the wall of a well of working well usually, make things convenient for workman's business turn over working well, nevertheless vertical climbing both consumes constructor physical power, has the potential safety hazard of falling again. In addition, the concrete pouring in the prior working well mainly adopts a top pump or a ground pump, steel wires are hung on the well wall at every other end of the concrete conveying pipe, the concrete conveying pipe is hung in the central area of the well bottom through the working acting force of the steel wires in different directions, and during pouring, a worker moves the discharge end of the concrete conveying pipe to pour. Because the working well adopts successive layer excavation, the mode of the wall of a well is pour to the successive layer is under construction, along with the increase of the degree of depth that the working well excavated, the concrete conveying pipe needs downwardly extending, and it all needs to fix once again to the concrete conveying pipe to extend at every turn, complex operation.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a structural design is ingenious, and the concrete conveying pipe of being convenient for lays, is favorable to reducing intensity of labour, improves the pin-connected panel spiral stair for working well of construction security.
In order to solve the technical problems, the invention adopts the following technical scheme:
the assembled spiral stair for the working well is characterized by comprising a plurality of stair components which are spirally and sequentially arranged on the well wall of the working well, wherein each stair component comprises a support arranged on the well wall and a footpath plate paved on the support, and one side, away from the well wall, of the footpath plate is provided with a guardrail; the concrete conveying pipe paved along the footpath plate is arranged below the footpath plate, and the concrete conveying pipe is fixed on the bracket.
Furthermore, a plurality of brackets are arranged at equal intervals along the length direction of the footpath plate, and the footpath plate is provided with an access hole and an openable cover plate; the access hole is positioned between the two brackets.
Thus, the maintenance operation can be carried out on the two support positions through the maintenance hole.
Furthermore, one side of the cover plate is hinged on the footplate, and the other opposite side is provided with a handle.
Like this, articulate the apron on the pavement board, can avoid the apron to lose, reduce the potential safety hazard, set up opening and closing, convenient operation of convenient apron of handle.
Further, an LED lamp group is further installed at the bottom of the cover plate and comprises an illuminating lamp and a red warning lamp; the LED lamp sets are connected to the control room in parallel through wires laid along the stairs.
During the construction, probably carry out the construction at night because of the engineering demand, through at apron bottom installation LED banks, just can illuminate the stair of below, in case when LED banks breaks down, can also open the apron and change, directly maintain the change on the pavement board. In addition, the apron is when the open mode, and the manhole can expose because the apron is opened, in case constructor process and not discover, causes the danger of falling easily, at apron bottom installation LED banks, has contained red warning light and light, even at night, also can warn constructor through red warning light, see the manhole that exposes clearly with the help of the light simultaneously, improve job site's security.
Furthermore, the support comprises a cross bar and an inclined strut, the cross bar is vertically arranged on the well wall, the inclined strut is obliquely arranged on the well wall, and one end of the cross bar, which is far away from the well wall, is fixedly connected with the upper end of the inclined strut; the footpath plates are fixedly arranged on the cross rods of at least two brackets; the concrete conveying pipe is fixed on the inclined supporting rod through a pipe hoop.
Like this, form the triangle-shaped structure through horizontal pole and diagonal brace, both can stabilize low support pavement board, still be convenient for concrete conveying pipe lay and fix, be favorable to improving the efficiency of construction.
Furthermore, the support further comprises a mounting seat, the mounting seat comprises a bottom plate with a bolt hole, a positioning sleeve is welded in the middle of the bottom plate, and one end, far away from the bottom plate, of the positioning sleeve is obliquely arranged relative to the bottom plate; the cross rod is made of a steel pipe, one end of the cross rod is vertically welded with the mounting plate, the other end of the cross rod is bent to form an acute angle, and the included angle between the cross rod and the axis of one end of the positioning sleeve far away from the bottom plate and the bottom plate is a complementary angle; the inner diameter of the positioning sleeve and the inner diameter of the steel pipe are consistent with the outer diameter of the inclined stay bar; during construction, the mounting seat is fixed on a well wall, the positioning sleeve is inclined upwards, the inclined strut is inserted into the positioning sleeve, the concrete conveying pipe is paved, the bending end of the cross rod is sleeved at the upper end of the inclined strut, and the mounting plate is fixed on the well wall to complete mounting of the support.
Like this, in whole work progress, the diagonal brace cartridge is in the hole of position sleeve and horizontal pole, only needs to fix mount pad and mounting panel on the wall of a well, just can accomplish the installation, and simple to operate is swift. Specifically, can also lift up the concrete conveying pipe earlier, again in concrete conveying pipe bottom cartridge diagonal brace, need not to install after the diagonal brace, wholly lift up the concrete conveying pipe again and lay labour saving and time saving.
Furthermore, the bottom of the footpath plate is provided with a positioning groove which is formed by upward protrusion, so that the upper surface of the footpath plate forms a convex rib; the positioning grooves are arranged in a penetrating manner along the width direction of the footplate and are arranged at equal intervals along the length direction of the footplate; the distance between every two adjacent brackets is integral multiple of the distance between every two adjacent positioning grooves; the positioning groove is provided with a plurality of bolt holes, the cross rod is provided with threaded holes corresponding to the bolt holes, and the footpath plate is fixedly installed on the cross rod through bolts.
A plurality of positioning grooves are equidistantly arranged on the footpath plate, so that the positioning grooves and the cross rods are conveniently positioned and installed. Meanwhile, the positioning grooves formed by the protrusions form a plurality of convex ribs on the surface of the footpath plate, so that the friction force on the surface of the footpath plate can be increased, and an operator is prevented from slipping.
Furthermore, the footpath plate is made of a steel plate with patterns.
Furthermore, the length of the footpath plate is 1.5-2.5 m.
In conclusion, the concrete conveying pipe has the advantages of ingenious structural design, convenience in arrangement of the concrete conveying pipe, contribution to reducing labor intensity, improvement of construction safety and the like.
Drawings
Fig. 1 is a schematic structural view of a staircase.
Fig. 2 is a structural schematic diagram of the stent.
Detailed Description
The present invention will be described in further detail with reference to examples.
In the specific implementation: as shown in fig. 1 and 2, a construction method for casting a working well by using a split mounting type spiral stair for the working well comprises the following steps of excavating the working well layer by layer according to a construction drawing, erecting a casting template at a well wall after each layer of working well is excavated, casting concrete on the well wall, excavating the next layer of working well after the well wall is formed and demolded until the working well is excavated to a designed depth, and finally casting concrete at the bottom of the well; after the wall of a well shaping formwork stripping on each layer, install earlier at the well wall and be spiral downwardly extending's stair along circumference, carry out the excavation of next floor working well again, after the excavation number of piles of working well surpassed 3 layers, lay the inside concrete conveyer pipe of scribbling with hydrophobic material along the below of stair on the excavation layer wall of a well that is higher than present excavation layer 2~3 layers, the upper end of this concrete conveyer pipe is connected with the concrete conveyer pipe or the pump that is located the last layer and exports, lower extreme detachably connects and pours the pipe and carries out concrete placement to the wall of a well or the top bottom of present excavation layer.
By adopting the method, after each layer of working well is excavated, the spiral stairs are arranged on the wall of the working well, so that constructors can conveniently and safely enter and exit the working well, and the potential safety hazard of climbing the vertical ladder by workers can be eliminated. In addition, concrete conveying pipes are laid at the positions of 2-3 layers above the current excavation layer, the height difference of the 2-3 layers of excavation layers can be utilized, the concrete pouring pipes can conveniently move in the working well, and the well wall or the well bottom is poured. Because the installation is connected to the concrete conveying pipe successive layer, along with the increase of the excavation degree of depth of working well, need not to carry out frequent dismouting to the concrete conveying pipe, it is more convenient to operate, and the concrete conveying pipe stability of fixing on the wall of a well is better, can effectively avoid the conveyer pipe to drop and the risk of falling that causes in the work progress.
When the stair is implemented, the stair comprises a support 1 arranged on a well wall and a footpath plate 2 paved on the support, wherein a guardrail 3 is arranged on one side, away from the well wall, of the footpath plate 2; during construction, the support is firstly installed on a well wall, then the concrete conveying pipe is laid along the support, the middle part of the concrete conveying pipe is detachably fixed on the support, two ends of the concrete conveying pipe are left empty, and then the footpath plate and the guardrail are installed; along with the successive layer excavation of working well, will be located the concrete conveying pipe and the upper concrete conveying pipe or pump outlet connection of excavating 2~3 layers of position above the layer at present again.
Because the pavement board installation back can shelter from the support for concrete conveying pipe's the difficulty of mating formation, in the above-mentioned construction, behind the installing support, the concrete conveying pipe of prearranging earlier makes its both ends leave empty, installs pavement board and guardrail again, later stage only need connect about two layers concrete conveying pipe can, need not to lay in the support, can reduce the construction degree of difficulty of stair and concrete conveying pipe.
In implementation, a plurality of the brackets 1 are equidistantly arranged along the length direction of the footplate 2, and the footplate 2 is provided with an access hole (not shown) and an openable cover plate (not shown); the access hole is located at a position between the two brackets 1.
Thus, the maintenance operation can be carried out on the two support positions through the maintenance hole.
In practice, one side of the cover plate is hinged to the footplate 2, and the other opposite side is provided with a handle.
Like this, articulate the apron on the pavement board, can avoid the apron to lose, reduce the potential safety hazard, set up opening and closing, convenient operation of convenient apron of handle.
In implementation, the bottom of the cover plate is also provided with an LED lamp group, and the LED lamp group comprises an illuminating lamp and a red warning lamp; the LED lamp sets are connected to the control room in parallel through wires laid along the stairs.
During the construction, probably carry out the construction at night because of the engineering demand, through at apron bottom installation LED banks, just can illuminate the stair of below, in case when LED banks breaks down, can also open the apron and change, directly maintain the change on the pavement board. In addition, the apron is when the open mode, and the manhole can expose because the apron is opened, in case constructor process and not discover, causes the danger of falling easily, at apron bottom installation LED banks, has contained red warning light and light, even at night, also can warn constructor through red warning light, see the manhole that exposes clearly with the help of the light simultaneously, improve job site's security.
In implementation, the support 1 comprises a cross bar 11 vertically installed on a well wall and an inclined strut 12 obliquely installed on the well wall, wherein one end of the cross bar 11, which is far away from the well wall, is fixedly connected with the upper end of the inclined strut 12; the footplate 2 is fixedly arranged on the cross bars 11 of at least two brackets 1; the concrete conveying pipe is fixed on the inclined supporting rod 12 through a pipe hoop.
Like this, form the triangle-shaped structure through horizontal pole and diagonal brace, both can stabilize low support pavement board, still be convenient for concrete conveying pipe lay and fix, be favorable to improving the efficiency of construction.
In implementation, the bracket 1 further comprises an installation seat 13, the installation seat 13 comprises a bottom plate with a bolt hole, a positioning sleeve is welded in the middle of the bottom plate, and one end, far away from the bottom plate, of the positioning sleeve is obliquely arranged relative to the bottom plate; the cross rod 11 is made of a steel pipe, one end of the cross rod is vertically welded with a mounting plate, the other end of the cross rod is bent to form an acute angle, and the included angle between the axis of one end of the positioning sleeve far away from the bottom plate and the bottom plate is a complementary angle; the inner diameter of the positioning sleeve and the inner diameter of the steel pipe are consistent with the outer diameter of the inclined stay bar; during construction, the mounting seat is fixed on a well wall, the positioning sleeve is inclined upwards, the inclined strut is inserted into the positioning sleeve, the concrete conveying pipe is paved, the bending end of the cross rod is sleeved at the upper end of the inclined strut, and the mounting plate is fixed on the well wall to complete mounting of the support.
Like this, in whole work progress, the diagonal brace cartridge is in the hole of position sleeve and horizontal pole, only needs to fix mount pad and mounting panel on the wall of a well, just can accomplish the installation, and simple to operate is swift. Specifically, can also lift up the concrete conveying pipe earlier, again in concrete conveying pipe bottom cartridge diagonal brace, need not to install after the diagonal brace, wholly lift up the concrete conveying pipe again and lay labour saving and time saving.
In practice, the bottom of the footplate 2 is provided with a positioning groove (not shown in the figure) which is formed by upward protrusion, so that the upper surface of the footplate 2 forms a rib; the positioning grooves are arranged in a penetrating manner along the width direction of the footplate 2, and a plurality of positioning grooves are arranged at equal intervals along the length direction of the footplate 2; the distance between every two adjacent brackets 1 is integral multiple of the distance between every two adjacent positioning grooves; the positioning groove is provided with a plurality of bolt holes, the cross rod 11 is provided with threaded holes corresponding to the bolt holes, and the footpath plate 2 is fixedly installed on the cross rod through bolts.
A plurality of positioning grooves are equidistantly arranged on the footpath plate, so that the positioning grooves and the cross rods are conveniently positioned and installed. Meanwhile, the positioning grooves formed by the protrusions form a plurality of convex ribs on the surface of the footpath plate, so that the friction force on the surface of the footpath plate can be increased, and an operator is prevented from slipping.
In practice, the footpath plate 2 is made of a patterned steel plate.
When the method is implemented, the length of the footplate 2 is 1.5-2.5 m.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The spliced spiral stair for the working well is characterized by comprising a plurality of stair components which are spirally and sequentially arranged on the well wall of the working well, wherein each stair component comprises a support (1) arranged on the well wall and a pavement plate (2) paved on the support, and one side, away from the well wall, of each pavement plate (2) is provided with a guardrail (3); a concrete conveying pipe (4) paved along the footpath plate is arranged below the footpath plate (2), and the concrete conveying pipe (4) is fixed on the bracket (1);
the support (1) comprises a cross bar (11) vertically arranged on the well wall and an inclined stay bar (12) obliquely arranged on the well wall, wherein one end of the cross bar (11) far away from the well wall is fixedly connected with the upper end of the inclined stay bar (12); the footpath plates (2) are fixedly arranged on the cross bars (11) of at least two brackets (1); the concrete conveying pipe is fixed on the inclined supporting rod (12) through a pipe hoop;
the support (1) further comprises a mounting seat (13), the mounting seat (13) comprises a bottom plate with a bolt hole, a positioning sleeve is welded in the middle of the bottom plate, and one end, far away from the bottom plate, of the positioning sleeve is obliquely arranged relative to the bottom plate; the cross rod (11) is made of a steel pipe, one end of the cross rod is vertically welded with the mounting plate, the other end of the cross rod is bent to form an acute angle, and the included angle between the cross rod and the axis of one end of the positioning sleeve far away from the bottom plate and the bottom plate is a complementary angle; the inner diameter of the positioning sleeve and the inner diameter of the steel pipe are consistent with the outer diameter of the inclined stay bar; during construction, the mounting seat is fixed on a well wall, the positioning sleeve is inclined upwards, the inclined strut is inserted into the positioning sleeve, the concrete conveying pipe is paved, the bending end of the cross rod is sleeved at the upper end of the inclined strut, and the mounting plate is fixed on the well wall to complete mounting of the support.
2. The assembled spiral stair for the working well is characterized in that a plurality of supports (1) are arranged at equal intervals along the length direction of the footpath plate (2), and the footpath plate (2) is provided with an access hole and an openable cover plate; the access hole is positioned between the two brackets (1).
3. Sectional spiral staircase for working wells, according to claim 2, characterized in that said cover plate is hinged on one side to said footplate (2) and on the other opposite side is fitted with a handle.
4. The spliced spiral stair for the working well according to claim 3, wherein an LED lamp set is further installed at the bottom of the cover plate and comprises an illuminating lamp and a red warning lamp; the LED lamp sets are connected to the control room in parallel through wires laid along the stairs.
5. The assembled spiral stair for the working well is characterized in that the bottom of the footpath plate (2) is provided with a positioning groove which is formed by upward protrusion, so that the upper surface of the footpath plate (2) forms a convex rib; the positioning grooves are arranged in a penetrating manner along the width direction of the footplate (2), and a plurality of positioning grooves are arranged at equal intervals along the length direction of the footplate (2); the distance between every two adjacent brackets (1) is integral multiple of the distance between every two adjacent positioning grooves; the positioning groove is provided with a plurality of bolt holes, the cross rod (11) is provided with threaded holes corresponding to the bolt holes, and the footpath plate (2) is fixedly installed on the cross rod through bolts.
6. The assembly type spiral stair for the working well is characterized in that the footpath plate (2) is made of a patterned steel plate.
7. The assembled spiral stair for the working well is characterized in that the length of the footpath plate (2) is 1.5-2.5 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584828.0A CN109356402B (en) | 2018-12-24 | 2018-12-24 | Pin-connected panel spiral stair for working well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584828.0A CN109356402B (en) | 2018-12-24 | 2018-12-24 | Pin-connected panel spiral stair for working well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356402A CN109356402A (en) | 2019-02-19 |
| CN109356402B true CN109356402B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811584828.0A Active CN109356402B (en) | 2018-12-24 | 2018-12-24 | Pin-connected panel spiral stair for working well |
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| CN (1) | CN109356402B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733710A (en) * | 2020-04-22 | 2020-10-02 | 甘肃路桥建设集团有限公司 | Bridge overhauls with construction cat ladder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2701971Y (en) * | 2004-07-01 | 2005-05-25 | 北京建工一建工程建设有限公司 | Dual-purpose tripod for building construction and decoration |
| JP2011001739A (en) * | 2009-06-18 | 2011-01-06 | Fujii Metal:Kk | Method and scaffolding device for installing spiral staircase for vertical shaft |
| CN202483154U (en) * | 2012-03-05 | 2012-10-10 | 中国核工业华兴建设有限公司 | High bearing capacity suspending scaffold |
| CN203603392U (en) * | 2013-11-20 | 2014-05-21 | 中煤西安设计工程有限责任公司 | Surrounding-type ladderway |
| CN104746862A (en) * | 2015-04-13 | 2015-07-01 | 中冶天工集团有限公司 | Temporary installation operating platform on overhead equipment foundation and erecting method thereof |
| CN106193566A (en) * | 2016-09-26 | 2016-12-07 | 安徽三建工程有限公司 | A kind of adjustable pylon of assembled integral shear wall structure |
| CN106677509A (en) * | 2017-02-14 | 2017-05-17 | 中天建设集团有限公司 | Design finalization external protective frame system used for assembly type building construction |
-
2018
- 2018-12-24 CN CN201811584828.0A patent/CN109356402B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2701971Y (en) * | 2004-07-01 | 2005-05-25 | 北京建工一建工程建设有限公司 | Dual-purpose tripod for building construction and decoration |
| JP2011001739A (en) * | 2009-06-18 | 2011-01-06 | Fujii Metal:Kk | Method and scaffolding device for installing spiral staircase for vertical shaft |
| CN202483154U (en) * | 2012-03-05 | 2012-10-10 | 中国核工业华兴建设有限公司 | High bearing capacity suspending scaffold |
| CN203603392U (en) * | 2013-11-20 | 2014-05-21 | 中煤西安设计工程有限责任公司 | Surrounding-type ladderway |
| CN104746862A (en) * | 2015-04-13 | 2015-07-01 | 中冶天工集团有限公司 | Temporary installation operating platform on overhead equipment foundation and erecting method thereof |
| CN106193566A (en) * | 2016-09-26 | 2016-12-07 | 安徽三建工程有限公司 | A kind of adjustable pylon of assembled integral shear wall structure |
| CN106677509A (en) * | 2017-02-14 | 2017-05-17 | 中天建设集团有限公司 | Design finalization external protective frame system used for assembly type building construction |
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| CN109356402A (en) | 2019-02-19 |
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